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blood urea nitrogen

blood urea nitrogen in Medicine

blood urea nitrogen n.
Abbr. BUN
Nitrogen in the form of urea in the blood or serum, used as a indicator of kidney function.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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